Part B: Problem Solving 1. {T} Using the strap at an angle of 31\" above the horizontal, a Grade 12 Physics student, tired from studying, is dragging his 15 kg school bag / across the floor at a constant velocity. - [_/41 {a} lfthe force of tension in the strap is 51 N, what is the normal force on the bag? {b} What is the coefficient of kinetic friction between the bag and the floor